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oU NONr. p. 1 /2o6-/ uPont I laskell Global Centers for }lealth and Environmental Sciences 10901- Ikton Road, 1' .O . Box 50 Newark, DE 19714-0050 - December 16, 2008 Via Federal Express Document Processing Center (Mail Code 7407M) Room 6428 Attention : 8(e) Coordinator Office of Pollution Prevention and Toxics U.S. Environmental Protection Agency 1201 Constitution Ave., N W Washington, DC 20004 Dear 8(e) Coordinator: Re: Perfluorooctanoic Acid (PFOA) Occupational Sampling Shimizu Facility, Japan F o 9 ,_ tj t, () , Please find attached occupational PFOA sampling results for workers at the above referenced DuPont site . The levels of PFOA reported with this submission are generally corroborative of previously reported levels iii an occupational setting. This information is provided voluntarily to the TSCA 8(e) office in view ofthe Agency's continued interest in perfluorinated substances and as a precautionary measure. Sincerely, A. Michael Kaplan, Ph .D. Director - Regulatory Affairs AMK/AVM/BJD : dwd (302) 366-5260 Attachment (2 pages) E.I . du Pont de Nemours and Company wapi"Now -3I53 q 3 DuPont Company Shimizu Works, Japan Results of Blood Plasma Sampling for PFOA September 2008 Sampling ' Worker I Number 1 2 3 4 5 6 7 I 8 ' 9 ' 10 11 12 13 14 15 16 'I Average~, Medianl Minimuml Maximum Standard Deviation n = Result 2008 (ppb) 33201 10101 3500 5191 3905 8370 24901 871 50401 4960 1240 771 175'I 1600~ 232! 3600 2551~i 2045 871 8370 2305 161 Note : Plasma samples analyzed by DuPont Haskell Global Centers for Health and Environmental Sciences results are rounded to nearest whole number DuPont Company Shimizu Works, Japan 2000 & 2008 PFOA Sample Results Worker Number 1 2 3 Average Mediani Minimuml Maximumi Standard Deviationi n= 2000* I Result (ppb) 1 57001 15001 30001 34001 30001 15001 57001 21281 31 2008 "* Result (ppb) 33201 1010 35001 26101 33201 10101 35001 13891 3 Notes: * 2000 results reflect whole blood measurements analyzed by National Medical Services - results rounded to nearest whole number . ** 2008 results reflect plasma samples analyzed by DuPont Haskell Global Centers for Health and Environmental Sciences - results rounded to nearest whole number .